Study: CO2 can cause air pollution deaths (Moldova.org) A U.S. study suggests rising carbon dioxide levels in the Earth's atmosphere, although not considered a classic air pollutant, can cause respiratory failure.CO2 pollution from burning fossil fuels has been linked to sea level changes, snowmelt, disease, heat stress, severe weather and ocean acidification. But it hasn't been identified as the cause of significant numbers of deaths.Noting that ... [News Source]